This page explains how Deane Chickering (USATT# 71925)'s rating went from 1591 to 1554 at the FL State Closed-Mid FL TT Tour held on - 4 Dec 2010. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.